St. John Valley weather for July 24-30, 2024

Joseph E. Becker, Special to The County
3 months ago

3-Day Outlook: Wed. July 24 – Fri. July 26

A warm front will slowly lift across the Valley today into tonight followed by a low pressure and cold front Thursday into Friday. High pressure will then build into the Valley for the weekend. There will be a slight chance of showers this afternoon and evening as the warm front lifts northwards. Chances of showers increase after midnight with showers likely by Thursday morning (along with some patchy fog). 

Showers continue Thursday with a chance of afternoon thunderstorms as the cold front approaches and moves across the SJV. A chance of showers continues Thursday evening with a slight chance of showers behind the front Thursday night into Friday morning (along with a chance for patchy fog to develop overnight). Skies become mostly clear by Friday night.

Daily Summary 

Today: Partly sunny. Highs in the upper 70s. Southeast winds around 5 mph.

Tonight: Partly cloudy with scattered showers in the evening, then mostly cloudy with numerous showers after midnight. Patchy fog after midnight. Lows in the upper 50s. Southeast winds around 5 mph. Chance of rain 70 percent.

Thursday: Patchy fog in the morning. Showers likely. A chance of thunderstorms in the afternoon. Highs in the lower 70s. South winds 5 to 10 mph, becoming southwest in the afternoon. Chance of rain 70 percent.

Thursday Night: Mostly cloudy with showers likely with a chance of thunderstorms in the evening, then partly cloudy with a chance of showers after midnight. Patchy fog after midnight. Lows in the mid 50s. West winds 5 to 10 mph. Chance of rain 70 percent.

Friday: Partly sunny with a 20 percent chance of showers. Highs in the mid 70s. Northwest winds 5 to 10 mph.

Friday Night: Mostly clear. Lows in the lower 50s.


4-7 Day Outlook: Sat. July 20 – Tue. July 23

High pressure will build across the Saint John Valley Saturday into early Tuesday then move east by midweek. Temperatures increase from the lower 80s Saturday into the low 90s Monday into Tuesday. Dew points climb into the 60s Sunday night through Tuesday making for a rather muggy period in northern Maine. A cold front looks to approach around midweek with a chance of afternoon showers and isolated thunderstorms Tuesday afternoon/evening. 

Daily Summary

Saturday: Mostly sunny. Highs in the upper 70s.

Saturday Night: Mostly clear. Lows in the upper 50s.

Sunday: Sunny. Highs in the mid-80s.

Sunday Night: Clear. Lows around 60.

Monday: Mostly sunny in the morning, then becoming partly sunny. Highs in the mid-80s.

Monday Night: Partly cloudy. Lows in the lower 60s.

Tuesday: Partly sunny. A chance of showers in the afternoon. Highs in the mid-80s. Chance of rain 30 percent.

Tuesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with lows in the mid-60s. Chance of rain is 20 percent.

8-14 Day Regional Climate Tends: Wed. July 24 – Tue. July 30 

Above normal temperatures / Near normal precipitation 

Note: Computer model precision diminishes the further into the week the forecast projects. Check The County.me or the National Weather Service Caribou, ME at for weather updates with more current information for the Saint John Valley.

The Week Ahead is the work of UMFK Professor Joseph E. Becker based on personal weather station data, various computer forecast models, and information that the National Weather Service, NOAA, and other weather resources provide.